A broadband feeding technique for microstrip patch antennas

1989 ◽  
Vol 6 (3) ◽  
pp. 251-262
Author(s):  
Zhong Shunshi
Keyword(s):  
Patch Antennas ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Feeding Technique

scholarly journals Reduction of the In-Band RCS of Microstrip Patch Antenna by Using Offset Feeding Technique

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Weiwei Xu ◽  
Junhong Wang ◽  
Meie Chen ◽  
Zhan Zhang ◽  
Zheng Li
Keyword(s):  
Frequency Band ◽  
Plane Waves ◽  
Patch Antennas ◽  
Radiation Characteristics ◽  
Antenna Structure ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Feeding Technique ◽  
Structural Mode ◽  
Scattering And Radiation

This paper presents a method for implementing a low in-band scattering design for microstrip patch antennas based on the analysis of structural mode scattering and radiation characteristics. The antenna structure is first designed to have the lowest structural mode scattering in a desired frequency band. The operating frequency band of the antenna is then changed to coincide with that of the lowest structural mode scattering by adjusting the feed position on the antenna (offset feeding) to achieve an antenna with low in-band radar cross section (RCS). In order to reduce the level of cross polarization of the antenna caused by offset feeding, symmetry feeding structures for both single patch antennas and two-patch arrays are proposed. Examples that show the efficiency of the method are given, and the results illustrate that the in-band RCS of the proposed antennas can be reduced by as much as 17 dBsm for plane waves impinging from the normal direction compared to patch antennas fed by conventional methods.

scholarly journals Backlobe Radiations Reduction with Patch Antenna Using Multilayered Dielectric Structure

2021 ◽  
Vol 11 (2) ◽  
pp. 861-870
Keyword(s):  
Patch Antenna ◽  
High Frequency ◽  
Multilayer Structure ◽  
Microstrip Patch Antenna ◽  
Patch Antennas ◽  
Dielectric Structure ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Feeding Technique ◽  
Structure Simulation

Backlobe radiations are the key stumbling block to using microstrip patch antennas in wireless communication, but they can be minimised by using a slot-coupled feeding technique. This paper proposes a microstrip patch antenna with a multilayer structure. The Ansoft High Frequency Structure Simulation is used to describe and model this slot-fed antenna, which has an improved gain of 5.6dB and directivity of 5.9dB and resonates at a frequency of 2.25GHz.

scholarly journals Compact Broadband Microstrip Triangular Antennas Fed By Folded Triangular Patch for Wireless Applications

2021 ◽  
Vol 10 (3) ◽  
pp. 14-23
Author(s):  
H. Malekpoor ◽  
M. Shahraki
Keyword(s):  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Patch Antennas ◽  
Wireless Applications ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Triangular Patch ◽  
Feeding Technique ◽  
Measured Impedance ◽  
Full Design

This study presents two new designs of reduced size broadband microstrip patch antennas for ultra-wideband (UWB) operation. A folded triangular patch’s feeding technique, V-shaped slot, half V-shaped slot and shorting pins are employed to design the suggested antennas. The shorting pins are applied at the edge of structures to miniaturize the size of the patches. The suggested design with the V-shaped slot provides the measured impedance bandwidth (S11˂-10 dB) of 3.91-12 GHz (101.7%) for broadband application. In the suggested design with the V-shaped slot, the wide bandwidth with an acceptable size reduction is achieved. By introducing a suggested half design with the half V-shaped slot, the impedance bandwidth of the proposed half structure is improved from 4 to 17.22 GHz. The half design includes a measured impedance bandwidth of 124.6% with reduced size of more than 93% compared to the corresponding full design and an enhanced measured bandwidth of 23%. The obtained radiation and impedance results show that the suggested designs are applicable for wideband operation. Besides, the effects of some basic concepts and surface currents on the suggested structures are investigated to explain their broadband performance.

Bio-Inspired Algorithms Applied on Microstrip Patch Antennas: a Review

2016 ◽  
Vol 6 (6) ◽  
pp. 336
Author(s):  
Omar A. Saraereh ◽  
Amer A. Al Saraira ◽  
Qais H. Alsafasfeh ◽  
Aodeh Arfoa
Keyword(s):  
Patch Antennas ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch

An improved design of harmonic suppression for microstrip patch antennas

2006 ◽  
Vol 49 (1) ◽  
pp. 103-105 ◽  
Author(s):  
M. K. Mandal ◽  
P. Mondal ◽  
S. Sanyal ◽  
A. Chakrabarty
Keyword(s):  
Patch Antennas ◽  
Harmonic Suppression ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Improved Design
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